#!/bin/sh

# This script builds and runs the DEC64 tests for an x64 machine running Linux.

./masm_to_nasm.sh <dec64.asm >dec64.nasm || exit

# Assemble dec64.o. 

nasm -f elf64 dec64.nasm || exit

build_and_run() {

# Compile, assemble and link a source file into a binary executable, then
# run it.

# We opt out of creating a position independent executable (a PIE), because we
# depend on absolute addressing. Without passing the the -no-pie flag, we get a
# warning like

#   /usr/bin/ld: dec64.o: warning: relocation in read-only section `.text'
#   /usr/bin/ld: warning: creating DT_TEXTREL in a PIE

# because of lines in dec64.nasm like

#   mov     r10, [r10+r9*8]

# We explicitly disable an executable stack to avoid a warning like

#   /usr/bin/ld: warning: dec64.o: missing .note.GNU-stack section implies executable stack

    src=$1
    bin=$2
    gcc \
        -no-pie \
        -z noexecstack \
        -o $bin \
        dec64_string.c \
        dec64_math.c \
        dec64.o \
        $src \
    && ./$bin
}

# Build and run the tests.

build_and_run dec64_test.c dec64_test \
&& build_and_run dec64_string_test.c dec64_string_test \
&& build_and_run dec64_math_test.c dec64_math_test \
|| exit

# This script has been tested on Debian GNU/Linux 12 (Bookworm), using NASM
# v2.16.01 and gcc v12.2.0.